Abstract: A connector and associated system. In a first aspect, the connector comprises a patterned surface and a primary track. The patterned surface comprises a surface aperture pattern that is configured to receive at least one protruding element, the protruding element being configured to connect the connector to a first modular component. The primary track is connected to the patterned surface. The primary track can slidably engage a protruding element of a second modular component, thereby connecting the first modular component and the second modular component. In a second aspect, a system can comprise the connector, the first modular component and the second modular component.

Abstract: A modular gear transmission and associated systems. The modular gear transmission has an assembled configuration, and the modular gear transmission includes a first transmission body and a first transmission gear set. The first transmission gear set includes a first protruding gear, a first intermediate gear set including at least one intermediate transmission gear, and a first transmission socket. The first transmission body is configured so that, when the modular gear transmission is in the assembled configuration, the first transmission body engages the first transmission gear set to hold the first transmission gear set in a rotatable configuration. The first protruding gear is configured so that, when the modular gear transmission is in the assembled configuration, the first protruding gear protrudes from the first transmission body and is rotatably engaged with the first intermediate gear set, the first protruding gear configured to rotate around a first referential axis of rotation.